Pneumatic Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
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I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

1125061 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Directional Control Valves (3way valves and stuff like that)

Last post by jpalf1
Replies: 86
by POLAND_SPUD » Sun Mar 07, 2010 1:12 am
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Directional Control Valves, commonly refereed to as 3,4,5 etc. valves or spool/poppet valves etc., can be very useful for spuders.
They can be used...

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very,useful info for a beginner such as myself.The links are great as well.Thankyou.(you won't believe this but as i was reading,my fridge comp...
86 Replies

552201 Views

Last post by jpalf1
Sat Apr 13, 2013 10:53 am
Sprinkler Valve Troubleshooting Guide

Last post by quinn whitsitt
Replies: 64
by noname » Sat Jun 16, 2007 12:15 am
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Sprinkler Valve Troubleshooting

This is a guide to sprinkler valve problems. Before creating a new topic to ask questions on why your valve isn't...

Last post

great job everyone
64 Replies

821157 Views

Last post by quinn whitsitt
Thu Feb 22, 2024 2:18 pm
Piston Valves Explained Visually

Last post by pavina
Replies: 178
by clide » Mon May 14, 2007 11:21 pm
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I had this posted on Spudtech, but I am reposting it here to hopefully help some people out and allow for discussions/updates.

Well I made this...

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Thanks for sharing this! It might also be useful to mention how friction and maintenance can affect performance over time. Looking forward to more...
178 Replies

967049 Views

Last post by pavina
Fri Sep 27, 2024 4:05 am
"How Much CO2 do I need?"

Last post by choke
Replies: 32
by BC Pneumatics » Sun Apr 01, 2007 9:52 pm
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For all those people out there looking for a rough idea of how much CO2 they will need for a chamber of any given size-
Just multiply the volume of...

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Great piece of software :) I've been kicking numbers round my head for a while now, and wondered if someone here could confirm. I'm filling a 1.5 dia...
32 Replies

374870 Views

Last post by choke
Thu Jul 04, 2013 2:38 pm
Valve Cutaways

Last post by jhalek90
Replies: 8
by PCGUY » Sat Feb 26, 2005 9:10 pm

First post

VALVE CUTAWAY

Provided By - Longshot

These are some pictures of some of the most popular valves used on spud cannons. Only difference is, these...

Last post

Can someone fix the picture links??

8 Replies

92397 Views

Last post by jhalek90
Wed Oct 07, 2009 2:13 pm

Topics

confetti cannons

Last post by urgle the danish cow
Replies: 8
by urgle the danish cow » Tue Aug 03, 2010 4:24 pm

First post

my brothers children live in the midwest and there is a sport/choir thingy there called show choir where about 50 kids sing and do extreme dancing in...

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technician the lights are very high above and in front of the stage so that wont be a problem

clemsonguy that is a good idea. i would like some...

8 Replies

2937 Views

Last post by urgle the danish cow
Wed Aug 04, 2010 1:15 pm
Piston valve question

Last post by Technician1002
Replies: 9
by Gun Freak » Tue Aug 03, 2010 2:47 pm

First post

I am designing a coaxial piston valve and (I'm gonna sound like a noob here lol :lol: ) the chamber is 1 and the barrel is airsoft sleeved in half...

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For a piston to move, there must be a force on it in the direction of the desired motion. This force must exceed the friction (there is always some...

9 Replies

1801 Views

Last post by Technician1002
Wed Aug 04, 2010 5:32 am
Need help deciding on a pump

Last post by FighterAce
Replies: 71
by Gun Freak » Sun Jul 18, 2010 8:09 pm
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I made that fire extinguisher tank the other day. Now, I need a mobile way to pump it up when I run out in an airsoft war. A bike pump is too big......

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Yeah but a stirrup pump is too big to carry around, otherwise I would just carry around my backpack and we wouldn't be having this conversation :)...
71 Replies

24326 Views

Last post by FighterAce
Tue Aug 03, 2010 4:46 pm
homemade 3 way valve

Last post by c11man
Replies: 5
by c11man » Mon Aug 02, 2010 6:41 pm

First post

yesterday i started on this little project and today i put the finishing touches on it. it is a high pressure mini 3 way valve with 1/8inch ports...

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How exactly did you make them, just cut them out with a pair of scissors? Valve looks great.

first i drill a hole of the correct diamter for in...

5 Replies

3732 Views

Last post by c11man
Mon Aug 02, 2010 7:01 pm
The first spudgun of higure !

Last post by higure
Replies: 6
by higure » Mon Aug 02, 2010 7:47 am

First post

Hi all!

So, considering that I can’t present my flamethrowers, I present my first spudgun.

Photographs:

The first version:

The last version:...

Last post

Why not, it's ingenious.

The ball valve was opened just a little to limit the flow.

Or, i could use my hammer valve directly instead of using it as...

6 Replies

4310 Views

Last post by higure
Mon Aug 02, 2010 2:34 pm
.50" QEV gun *New stock, almost finished*

Last post by zy
Replies: 42
by zy » Fri Jul 23, 2010 9:44 am
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Just dropping by to inspire fellow spudders with this newly built QEV gun.
Hope you will enjoy it.

Info

1/2 QEV.
Pilot valve: modified blowgun...

Last post

Safety first! ...Shooting indoors... Not a good idea with powerful guns :?
42 Replies

20992 Views

Last post by zy
Mon Aug 02, 2010 1:33 pm
Golf Ball What if Projectile?

Last post by Ragnarok
Replies: 28
by boyntonstu » Mon Oct 26, 2009 10:38 pm
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I was thinking of building a golf ball gun and I quickly learned about the barrel problem.

I then learned about sleeving a cut 2 PVC into a 2 pipe....

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It'd be interesting if GGDT had a tool for velocity drop of the projectile once it left the barrel, such as detailing the loss in velocity over a...
28 Replies

5619 Views

Last post by Ragnarok
Mon Aug 02, 2010 11:50 am
QEV and shock pump questions

Last post by wyz2285
Replies: 8
by SP00K » Sat Jul 31, 2010 12:45 pm

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I plan on making a coaxial pistol. I want to make a qev like this one: but I do not fully understand how it works. I thought about using a modded...

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the video is a self close piston valve,i have watched it a lots of times :)

8 Replies

4336 Views

Last post by wyz2285
Sun Aug 01, 2010 9:50 am
Another 'spudgun' on The Firearm Blog

Last post by maverik94
Replies: 12
by jackssmirkingrevenge » Fri Jul 30, 2010 3:09 pm

First post

...and what a spudgun!

:shock:

The company tells me what they have designed for gun for maritime recreational use...

Good to see that some...

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Wow. 3000 ft/lbs is pretty damn impressive :) But yeah, why is the video so shaky and psychotic? :D

12 Replies

6817 Views

Last post by maverik94
Sat Jul 31, 2010 6:27 pm
Hammer Valve Grooves

Last post by Mr.Sandman
Replies: 10
by clemsonguy1125 » Wed Jul 28, 2010 3:52 pm

First post

A while ago I made a simple single shot pellet gun which worked well and had a XRV hammer valve. I decided to try an upgrade it to a multishot hamer...

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I used a drill press and a bastard file to make my hammer valve grooves, works wonders. Imo files work much better than sandpaper, and they take off...

10 Replies

2958 Views

Last post by Mr.Sandman
Fri Jul 30, 2010 1:58 am
What is Bullpup?

Last post by jackssmirkingrevenge
Replies: 13
by caspar97 » Wed Jul 28, 2010 10:47 am

First post

I tried to find forums that explained it, but the search gave me forums that only mentioned it. I see it mentioned a fair amount, but I don't know...

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c11man, one for the showcase soon?

In my opinion, bullpup is the way to go in the future.
Not only in spudding, but also in commercial air...

13 Replies

4764 Views

Last post by jackssmirkingrevenge
Thu Jul 29, 2010 10:25 pm
[W.I.P] New gun by Smirpab !

Last post by jackssmirkingrevenge
Replies: 6
by smirpab » Wed Jul 28, 2010 8:08 am

First post

Hello to everybody!

I go standard(cannon) present my new project, an air(sight), calibrate 10mm interns, the truth bolt, a wooden butt(stick) is...

Last post

Touché, mon ami

:D :D :D

6 Replies

2451 Views

Last post by jackssmirkingrevenge
Thu Jul 29, 2010 7:13 am
B.A.R. Pnuschnikov full auto prototype

Last post by irisher
Replies: 111
by Brian the brain » Sat Feb 27, 2010 4:47 pm
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As I was very impressed with the forced blowback design wich was entered in the last competition I felt I had to go for it.

So far I have made the...

Last post

I wish more people would give the idea a try, so we can see what, for instance, a larger bore would do for this thing. I'm trying it with a 50 cal....
111 Replies

37837 Views

Last post by irisher
Wed Jul 28, 2010 4:26 pm
has anyone ever built a paintball itself?

Last post by spud-freak
Replies: 2
by spud-freak » Tue Jul 27, 2010 5:44 am

First post

I have a few animations on a website found by paintballs .. my question is whether anyone has tried? I currently work very well on it! but I get the...

Last post

yeah.xD my first language is german!
sorry for my bad english..and thank you for helping!

2 Replies

1840 Views

Last post by spud-freak
Wed Jul 28, 2010 1:01 pm
Hydraulic pumps - will they work with air ?

Last post by ramses
Replies: 17
by POLAND_SPUD » Sat Jul 24, 2010 10:06 am
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I've seen lots of cheap hydraulic pumps and I was wondering whether it is possible to use them as air compressors ?

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okay. I kinda doubt that would work, but for $10, you can't go wrong. Heck, the motor was probably worth more.
17 Replies

8099 Views

Last post by ramses
Wed Jul 28, 2010 9:39 am
Pac coaxial by smirpab

Last post by smirpab
Replies: 18
by smirpab » Sun Jul 04, 2010 1:20 pm
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Caractériqtiques :

Système de tir : Coaxial
Canon : Tube de 10mm interne sur 60cm
Chambre : Tube de galva en 3/4 sur 50cm
Piston : Piston de...

Last post

Ok ! Les't go !
18 Replies

10708 Views

Last post by smirpab
Wed Jul 28, 2010 7:39 am
Piston valve sniper

Last post by wyz2285
Replies: 10
by wyz2285 » Fri Mar 12, 2010 1:18 pm

First post

My first piston valve airgun,10bar operation pressure,shots BBs and nails :D .

I know is not very good, it needs a bolt action,a stock...but I'm a...

Last post

I study at a private school,so i have a lots of things to do :(

10 Replies

6547 Views

Last post by wyz2285
Wed Jul 28, 2010 5:51 am
The Black Dahlia

Last post by chinnerz
Replies: 10
by pneumaNINJA » Tue Oct 02, 2007 6:30 pm

First post

I recently built a simple inline ballvalve-actuated cannon.

Specs:
Tank: 2' long, 3 diameter
Barrel: 4' long, 1.5 diameter
Valve: 1 diameter ball...

Last post

noice :D yes... noice

can you not bump up 2 year old topics for no reason please?? K thanks

10 Replies

6243 Views

Last post by chinnerz
Tue Jul 27, 2010 7:25 pm
The Joys of Being Back- .25 Cal QEV Long Arm

Last post by thedeathofall
Replies: 6
by thedeathofall » Sun Jul 25, 2010 11:42 pm

First post

So it has been a while... A long, and somewhat painful while without being able to build. But its summer again here and I am at home again with full...

Last post

No gravity in your area then

You sure it's just my area? I thought everyone ate breakfast on the ceiling... :roll:

6 Replies

4198 Views

Last post by thedeathofall
Tue Jul 27, 2010 2:32 pm
Auto Loader 32mm

Last post by servion
Replies: 36
by velocity3x » Fri Apr 02, 2010 4:35 pm
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I posted pics in the Pneumatic Forum a couple of months ago while I was preparing to make a video. The cannon incurred a mechanical problem soon...

Last post

Could You post the pictures again??
36 Replies

16753 Views

Last post by servion
Mon Jul 26, 2010 11:23 am
Pressure rating issues

Last post by Lockednloaded
Replies: 10
by DC » Sat Jul 24, 2010 12:44 pm

First post

Alright so I my other account magically dissappeared so this thing is telling me im a rookie so.... lol ANYWAYS
I'm working on a grenade launcher for...

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I would just go with something like this is you want to go unregged co2

10 Replies

2741 Views

Last post by Lockednloaded
Sat Jul 24, 2010 10:48 pm
.22 300-400 psi air rifle

Last post by Crna Legija
Replies: 29
by Clarke » Fri Jul 09, 2010 9:53 pm
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I have had this gun sitting for a while and thought id finally finish it with a coat of paint and post it up.

Its a simple 1/2 QEV with a lightly...

Last post

all the blow guns iv seen are 1/4'' npt threads
29 Replies

16079 Views

Last post by Crna Legija
Fri Jul 23, 2010 11:51 pm
Frist coax air gun

Last post by Crna Legija
Replies: 9
by wyz2285 » Sun Jul 04, 2010 9:45 am

First post

well I build this gun in about 1h,as a frist try at coax air guns.
It works very well,the piston opens pretty fast :D .The gun is made of 80cm of...

Last post

just get a shock pump theres like 100's on ebay

9 Replies

5578 Views

Last post by Crna Legija
Fri Jul 23, 2010 6:27 am
Fire extinguisher tank

Last post by Gun Freak
Replies: 61
by Gun Freak » Sun Jul 18, 2010 5:56 pm
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There is a teeny tiny leak here, but I think it will fix itself. I can see a little bit of black, which I assume is the STEEL JB Weld part just...

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Ok thank you guys so much for the help and the info, I will probably be long done with this tank in a few years so I'm good. Cheers :occasion5:
61 Replies

26106 Views

Last post by Gun Freak
Thu Jul 22, 2010 1:34 pm
piston valve mkII

Last post by Clarke
Replies: 7
by urgle the danish cow » Wed Jul 21, 2010 12:15 pm

First post

this is a revised version of my first piston valve by adding a blowgun and reducing pilot vloume(still needs work). the chamber is 3/4in copper pipe...

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As clemsonguy1125 said i think if your re-did your pilot side and re-positioned the blowgun i think you will notice far better power and accuracy....

7 Replies

4066 Views

Last post by Clarke
Thu Jul 22, 2010 6:59 am

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